Busei Internal Medicine, conveniently located just a 3-minute walk from Higashi-Koenji Station on the Tokyo Metro Marunouchi Line, offers general internal medicine along with specialized care in gastroenterology, cardiology, respiratory medicine, and allergy. The clinic provides gastroscopy examinations on Monday mornings and Saturdays, and offers guidance for lifestyle diseases such as hypertension, diabetes, and dyslipidemia, as well as smoking cessation services. Equipped with ultrasound diagnostic equipment, the facility also offers vaccinations, health checkups, home visits, and home-based medical care. Dr. Naoto Soma's consultation days include English-language services, and the clinic features on-site parking and barrier-free accessibility, making it easy to access by car or for elderly patients. Influenza and COVID-19 vaccinations are available, and advance online booking is offered for the fever clinic and gastroscopy examinations.